KEAT Discussion

A big broad trough is anchored over the northern Pacific Ocean. Multiple shortwaves will pass through our forecast area for the upcoming week. The first system will produce a copious amount of rainfall for the windward side of the Cascade mountians Although residual precipiation may spill over to KEAT ASOS. The timing of this first event should start Monday night and end on Tuesday morning. This is right around the start of our first forecast period. The second disturbance seems to be packing more of a punch...at least according to the GFS and will bring an increase chance of precipitation over KEAT for Wednesday night into Thursday morning. It is still too early to make any actual prediction for this second wave. Temperature should be right around the normal values for the week. The only concern I have is how much spillover precipitation does KEAT get with these onshore systems?